Heat Flow1-D ExampleEquation Formulation1,,1iiisihhhx+−−=− ∆1iT−iT1iT+h+,1h−x∆Incoming Heat ()shHeat in from leftHeat out from rightIncoming heat per unit length11,heat flowTThxκ++−==∆Limit as the sections become vanishingly small0()lim( )xshxTxxxx∆→∂∂∂∂